Figured I would start this topic since I just got Melodytchi's new Personality Stage:
I got it after getting all of the skills at the dream school. The animation that goes along with it is super cute!
I'm not sure if Spacytchi's is new or not. But the animation getting chased by UFOs is cute... also acquired by getting all skills. When happiness goes lower than a certain point he appears to go back to normal. Same happened with Melodytchi.